What book sellers need from their software, from sources outside Wave and outside Nexa:
Used and collectible books are often sold across state lines to other dealers. Maryland waives the seller's duty to collect sales tax on an antique (at least 70 years old) or a used collectible (previously sold at retail as new) if the buyer gives a signed resale certificate. For an out-of-state buyer the certificate must carry another state's sales tax registration number and a copy of that state's registration license, or a trader's license if the state has no sales tax. A dealer therefore has to store and match resale certificates to each such sale. Maryland's rules still limit purchases under $200. (law.cornell.edu)
Selling books through events in other states can create sales tax obligations there. In a Virginia Tax Commissioner ruling, an out-of-state book seller shipped books to Virginia contractors for storage and delivery to school book fairs. Because the books were stored in Virginia, the seller was held liable to collect and report tax on all its Virginia sales. Its resale claim also failed because only certificates issued by the Virginia department were valid. The ruling dates from 1986, so current rules may differ. The practical need is to track stock held or sold in each state, and the resale certificates that go with it. (tax.virginia.gov)
Books are mailed at the USPS Media Mail rate only if they meet content rules. In the archived 2006 Domestic Mail Manual, a qualifying book has at least eight printed pages and consists wholly of reading matter or scholarly bibliography. It carries no advertising other than incidental book announcements. Enclosures are limited, for example one bound-in envelope or postcard and one bound-in order form. Shipping and invoicing records therefore need to show which orders qualify for Media Mail. The current rules may differ from this archived text. (pe.usps.com)
A bookseller's stock of bought-and-resold books counts as inventory for tax purposes. IRS Publication 538 says an inventory is needed where buying or selling merchandise is a major income factor. In that case purchases and sales generally use the accrual method. The generally available valuation methods are cost, lower of cost or market, and retail. A business with average annual gross receipts of $26 million or less (indexed for inflation) over the 3 prior tax years can choose not to keep an inventory. Such a business must still use an inventory accounting method that clearly reflects income. Most small book sellers fall under that limit but still need per-title cost records. (irs.gov)
Wave covers the general bookkeeping side of a book business well. Starter is free and includes unlimited invoices, bills and bookkeeping records. Pro at $19 a month adds automatic bank import, receipt capture, and late-payment reminders. It is simple enough to run without an accountant. What it does not list is anything specific to selling books: storing resale certificates and matching them to sales, tracking stock held or sold in each state, flagging which orders qualify for Media Mail, or keeping per-title cost records for inventory tax purposes. A dealer selling used and collectible books across state lines, or at events in other states, would have to handle those outside Wave.
Nexa covers more of the accounting and tax side than Wave's list shows. It has expenses, bank reconciliation, profit and loss, a balance sheet, sales tax tracking, purchase orders, receipt scanning, and a simple stock count per product. It does not have full inventory management, meaning no valuation, no reorder points, and no multi-location stock. Valuation is the part that matters for per-title cost records. Nothing in Nexa's feature set handles resale certificates, Media Mail eligibility, or stock by state. It also has no sync or import with QuickBooks or Xero, no hosted support desk, and it runs on one device unless you add optional Cloud Sync.
Over three years Wave Pro costs $684 ($228 a year), and Wave Starter costs nothing. Nexa costs $279 once, or 3 payments of $99. With Cloud Sync at $4.99 a month it comes to $458.64. Nexa is cheaper than Wave Pro, but neither tool handles the main bookselling tasks: certificate matching, per-state stock, and title-level cost records. A seller who only needs invoices and books can stay on Wave, and free Starter may be enough. A seller with multistate or dealer-to-dealer sales should add a book-inventory system with per-title cost tracking and tax-document storage, and keep a simple accounting tool alongside it.
Our read for book sellers: Neither Wave nor Nexa handles resale certificates, per-state stock or per-title cost records, so a book-specific inventory and sales-tax tool is the core need; keep your current accounting tool alongside it.
Read on each linked page in October 2026. Check them again before you decide; vendors change plans often.
Bottom Line
Wave costs book sellers $228/year at today's list price. Nexa is $279 once for invoicing, scheduling, CRM, time tracking and accounting in one suite — so after 14.7 months it has cost less than Wave, and you own it after that. What it is not: hosted-for-you software with a support desk and a roadmap you can lobby. That is the trade, and the rest of this page is the detail behind it.
Can it pay for itself?
Nexa is $279 once, about $23 a month over its first year. Its Drain Guard reads your expenses (from a linked bank, an imported statement, or ones you type in), finds the charges that repeat, and adds them up by the month. Keep or Cut then walks you through them one at a time. Cancel $23 a month of charges you'd forgotten about and Nexa has paid for itself inside the first year, before you count the Wave bill you'd stop paying.
It depends on what you find and what you cancel, so we don't promise a number. In our demo data, Drain Guard finds 5 subscriptions adding up to $110.13 a month. That is sample data, not a customer's.
The verdict for book sellers: Neither Wave nor Nexa is the main system for this work; start with software built for it. Nexa only makes sense beside it, at $279 once against $684 for Wave over three years.
Choose Nexa if:
You're done paying monthly forever
You're a solo operator or small team (1-5)
You need financial suite and task manager in one tool
You're tired of price increases
You want to own your tools like you own your equipment
Choose Wave if:
You have a large team (10+) needing enterprise features
You're deeply invested in Wave's specific workflow
You need a feature Nexa doesn't have yet
Sound Familiar?
He spends the morning scanning ISBNs at an estate sale and library discard pile, the app calling out the comps as fast as he can swipe, and most of it is penny-book chaff, common titles where a competitor will sell for a cent and lose money on the spread. The job is finding the needle: the unclipped dust jacket, the right number line, the points of issue that mark a genuine first edition hiding in a box of nothing. Back at the shop he grades carefully, because in books condition is everything, and foxing on the page edges, an ex-library stamp, a price-clipped flap each knock the value down a tier, and overgrading is a guaranteed return. He photographs the dust jacket, the copyright page, the signed title page, and writes a description a collector can trust. Some books get gentle repair, a Brodart cover, archival tape on a tear, never anything that a purist would call restoration gone wrong. The economics are patient and lopsided: thousands of one-dollar books sit on shelves for years, and a single first edition found in a free box can pay for all of them. Shipping common titles barely clears media mail, so the whole game is volume on the cheap end and vigilance for the rare.
Identifying true first editions and points of issue so a valuable copy isn't sold for two dollars
Penny-book competition crushing margins on common titles where shipping eats the profit
Grading condition honestly across foxing, ex-library marks, and clipped jackets that swing the price
Managing deep, slow-turning inventory where the one rare book pays for a thousand that won't move
The books and job tracking are the pieces of that day. Some tools rent you each piece separately. A few — Nexa among them — bundle the lot into something you buy once. The sections below price both routes honestly.
None of that is a software problem you can buy your way out of in one click — it is why the tool you pick matters more than what it costs. Wave solves some of it. So does Nexa. The difference is what you are left holding in three years.
What Wave Actually Costs Book Sellers
Today's list price is $19/month — $228 a year, from Wave's own pricing page. Every figure below is that price, multiplied. Nothing is projected.
Three years at today's price
Year 1$228
Year 2$228
Year 3$228
Three years of Wave$684
Nexa: $279 once (or 3 × $99). Over the same three years, that is $405 less.
If Wave raises its price, the three-year cost goes up; if it cuts it, the cost comes down. We don't guess which. Add-ons, extra seats and card-processing fees are not included, on either side.
Feature-by-Feature
Feature
Wave
Nexa
Invoicing
✓
✓
Scheduling
✗
✓
CRM
✗
✓
Time Tracking
✗
✓
Full Accounting
✓
✓ (SIMPL)
Task Management
✗
✓
Works offline
✗
✓
Price
$19/mo
$279 once or 3 × $99
3-Year Total
$684
$279
You own it?
No — stop paying, lose access
Yes — forever
✓ and ✗ for Wave come from its own published feature list. — means the feature isn't in that list, which is not the same as Wave lacking it: check with them. Three years is at today's price.
What "$279 Once" Does And Doesn't Buy
It buys the software, not a service contract. You install Nexa and it runs on your machine. There is no seat count, and nothing stops working if you stop paying, because there is nothing to stop paying.
Wave's monthly fee is not only rent. It pays for their hosting, their support desk, and their engineers shipping changes every week. If those matter to how you work, that is a real thing you would be giving up.
Cross-device sync is the one optional extra — $4.99/month if you want your data mirrored between machines. Skip it and Nexa still works; you just sync manually.
The honest risk of buying once: you are betting on us still being here to improve it. The honest risk of renting: the price is theirs to raise, and the graveyard section below is a record of tools that did exactly that.
What Wave Does Better
Straight from Wave's own feature set. If one of these is the reason you pay them, that reason does not disappear because Nexa is cheaper.
Free plan covering unlimited invoices and bookkeeping
Bank transaction import on Pro
Receipt capture
Late payment reminders
Simple enough to run without an accountant
A free plan to start on (with limits), so you can use Wave before paying anything.
Wave is the better call if you need free plan covering unlimited invoices and bookkeeping specifically, or if your team is large enough that per-seat pricing still beats buying software outright.
What Wave Is Built For
Wave says it is built for small business owners and solopreneurs at every stage, not accountants. Its page names freelancers, contractors and consultants. (waveapps.com)
The Starter plan costs $0 and includes unlimited estimates, invoices, bills and bookkeeping records. (waveapps.com)
Pro costs $19 USD a month or $190 USD a year. It adds automatic bank transaction import (for banks Plaid supports), automatic merging and categorizing of bank transactions, and automated late-payment reminders at 3, 7 and 14 days after the due date. (waveapps.com)
Pro lets you put your logo and brand colors on invoices, remove Wave branding from footers, and attach files to invoices and estimates. It also adds user roles (admin, editor, viewer), and the payroll manager and Block Advisors tax pro roles are free. (waveapps.com)
Online card payments on Starter cost 2.9% + $0.60 (Amex 3.4% + $0.60). On Pro the first 10 transactions each month are 2.9% + $0, then 2.9% + $0.60. (waveapps.com)
Wave Advisors starts at $149 a month and includes a dedicated bookkeeper and monthly financial statements. Payroll is an add-on starting at $25 a month in one region and $40 in the other; the page does not say which price applies where. (waveapps.com)
Wave lists a mobile app for invoices, expenses and receipts, and 256-bit SSL encryption with PCI-DSS Level 1 certification. Live chat and email support runs Monday to Friday, 9 AM to 4:45 PM Eastern, and is tied to optional add-ons. (waveapps.com)
What people outside Wave and outside Nexa say:
NerdWallet lists a free plan and straightforward invoicing as pros. Its cons are no built-in third-party integrations, no advanced features such as mileage, time tracking or inventory, no live support unless you pay, and no audit trails. (nerdwallet.com)
NerdWallet says "An overwhelming number of Wave reviewers criticize its customer support." It adds that the paid plan "doesn't address Wave users' biggest complaint: customer service." (nerdwallet.com)
Tech.co praises the free tier, affordable add-ons and the way Wave "does the basics well." It concludes "Wave is definitely worth it" for side businesses that don't need specialist accounting features. (tech.co)
Tech.co criticizes Wave for lacking advanced features such as budgeting, cash flow projections, stock handling and project accounting, and for struggling to scale with growing businesses. It also says phone and live chat support come at a premium. (tech.co)
Read on each linked page in October 2026. Check them again before you decide; vendors change plans often.
Where business tools fit — for a used book seller
Software doesn't do the actual work — it automates the business around it. And that part is the same for every used book seller: find the work, manage it, bill for it, get paid. Each step has a tool — and the right single tool runs the whole loop, so the handoffs are automatic and you get back to the actual work. Tap a step to see what gets automated.
1
Find the work
Win the job
↓
A lead, a call, a referral — and a quote or estimate that turns it into a booked job.
CRM / contacts
Estimates & proposals
Booking / scheduling
then ↓
2
Manage the work
Do the job
↓
The part you actually get paid for — with the time, materials, add-ons, and tasks tracked as you go, not guessed at later.
Job / project tracking
Time tracking
Expenses, materials & add-ons
then ↓
3
Bill for it
Send the bill
↓
The work becomes the invoice — the hours, the add-ons, the materials, the deposit credited — totaled and sent, instead of re-typed at 9pm.
Invoicing
Deposits & credits
then ↓
4
Get paid
Collect payment
↓
Paid by card or link, the deposit credited, and what's overdue chased — without you doing it by hand.
Card / online payments
Automatic reminders
You can stitch four separate subscriptions across these four steps, or run one tool that does the whole flow so a booking becomes a job becomes an invoice becomes a payment without re-typing. Either way the goal is the same: less time on the business of the business, more on the actual work. (Nexa is built to be the one — but the honest options for each step are above and below.)
Calculate Your Full Stack
Wave plus whatever else you're paying for:
Email yourself this comparison?
Switching from Wave
1
Export your data — Go to Settings → Data Export. Download customers, invoices, transactions, and accounts.
2
Set up Nexa — 15-minute setup. Import your client list and bank transactions from CSV.
3
Parallel run — Run both for 1-2 weeks. Re-create recurring invoices in Nexa and check your bank imports.
4
Cancel Wave — Cancel paid features. Your free account data stays accessible for records.
✓ 30-day money-back guarantee. Zero risk.
What This Means for Book Sellers
The median used book seller earns $32,000/year. At $228/year, Wave is a recurring slice of that — paid again every year, whether the year was good or not. Owning the same jobs outright is $279 once, and the slice stops.
Nexa is $279 once. Invoicing, scheduling, CRM, time tracking, accounting — all connected, built for book sellers. You own it like you own your an ISBN scanner or scouting app for quick comp lookups.
Is Nexa actually right for a used book seller?
An honest fit check — because the wrong tool is worse than no tool.
Right for you if
You run solo or a small team — like the 40,000 book sellers in the US who do, and you wear every hat.
You're tired of paying every month for a monthly subscription stack and a pile of apps that don't talk to each other.
You want invoicing, scheduling, and client tracking in one place — not scattered across five apps.
You'd rather own your software once, the way you own your an ISBN scanner or scouting app for quick comp lookups.
Look elsewhere if
You have a large team that needs enterprise seats, granular roles, and dedicated admin staff — Nexa is built for solo and small operators (1–5), and a bigger platform will serve you better.
You need full payroll for a large team or deep, SKU-level inventory — that's not what Nexa is for.
You're genuinely happy paying monthly and don't mind stitching tools together. No tool fixes a workflow you already like.
The honest fit: if you're a solo or small book sellers business that owns its tools and is sick of renting software, Nexa replaces your whole stack for $279 once. If you're scaling into a large team with dedicated admin staff, a bigger platform may fit better — and we'd rather tell you that now than sell you the wrong thing.
The books and job tracking are the pieces of that day. Some tools rent you each piece separately. A few — Nexa among them — bundle the lot into something you buy once. The sections below price both routes honestly.
What book sellers actually deal with
Identifying true first editions and points of issue so a valuable copy isn't sold for two dollars
Penny-book competition crushing margins on common titles where shipping eats the profit
Grading condition honestly across foxing, ex-library marks, and clipped jackets that swing the price
Managing deep, slow-turning inventory where the one rare book pays for a thousand that won't move
A day in the life of a used book seller
He spends the morning scanning ISBNs at an estate sale and library discard pile, the app calling out the comps as fast as he can swipe, and most of it is penny-book chaff, common titles where a competitor will sell for a cent and lose money on the spread. The job is finding the needle: the unclipped dust jacket, the right number line, the points of issue that mark a genuine first edition hiding in a box of nothing. Back at the shop he grades carefully, because in books condition is everything, and foxing on the page edges, an ex-library stamp, a price-clipped flap each knock the value down a tier, and overgrading is a guaranteed return. He photographs the dust jacket, the copyright page, the signed title page, and writes a description a collector can trust. Some books get gentle repair, a Brodart cover, archival tape on a tear, never anything that a purist would call restoration gone wrong. The economics are patient and lopsided: thousands of one-dollar books sit on shelves for years, and a single first edition found in a free box can pay for all of them. Shipping common titles barely clears media mail, so the whole game is volume on the cheap end and vigilance for the rare.
The tools a working used book seller actually owns
an ISBN scanner or scouting app for quick comp lookups
book repair supplies (archival tape, glue, Brodart covers)
a flatbed scanner or camera for photographing dust jackets and signatures
reference guides for identifying first editions and points of issue
padded mailers, board, and a media-mail shipping setup
The tools of the trade — each a one-time buy that earns its keep for years.
Core kitEssential
ISBN scanner or scouting device
$60–$300
Core kitEssential
Book repair supplies kit
$40–$180
Core kitEssential
Shelving and storage bins
$200–$900
Core kitEssential
Thermal label printer
$100–$400
Core kitEssential
Shipping scale
$40–$200
Core kitEssential
Cleaning supplies for conditioning
$30–$150
Core kitEssential
Hand truck for hauls
$100–$400
The core kit, bought once$570–$2,530
Here's the bar that matters: you spent $570–$2,530 on tools that last for years, and never thought twice. So why should the software cost more than your whole kit — every single year? Hold it to the same standard as a good tool: $279, once.
How To Read This Page
We make Nexa. It is one of the two options compared here, so read this with that in mind. We have tried to make Wave's case the way we would want ours made — their strengths above are their own published feature list, not our summary of it.
The prices are Wave's published list prices, checked on the date shown in the sources below. Plans change; check theirs before you decide.
No customer quotes appear on this page because we do not have any from book sellers we can verify. For user testimony, read the independent reviews — Wave on G2 and on Capterra — where the reviewers are not selling you anything.
Check the price yourself:Wave's own pricing page is the source for every figure above, read on the date shown in the sources section below.
We are not neutral about subscriptions, and that is the argument, not a hidden assumption: software you pay for once is cheaper over three years than software you rent, unless you need something only the rented one does.
How we put this guide together
We build a used book seller's guide the same way every time, and we'd rather you trust it than take it on faith. Nexa is our product, so the test we hold ourselves to is simple: a tool only "wins" a job here when it genuinely does that job better for a used book seller — and where something free, open-source, or buy-once does it better, we say so and link you to it. Where Nexa falls short (payroll is the honest example), we name the alternative outright.
Where the numbers come from
Vendor pricingQuickBooks $456/yr, Wave $228/yr, FreshBooks $516/yr, Square — taken from each company's published plans, last verified September 2026. Pricing moves; each name above links straight to that vendor’s own pricing page so you can confirm it before you decide.
Income contextThe $32,000 median we cite for the typical used book seller is occupational median annual pay from the U.S. Bureau of Labor Statistics (Occupational Employment & Wage Statistics), compiled April 2026. We use it only to show software spend as a share of real income — your own numbers will differ.
Three-year mathMulti-year totals are today's list price multiplied by the number of years. No price rise is projected, so the figure can be checked against the vendor's own pricing page; if they raise it, the real cost is higher.
Found something out of date? Prices change and we don't catch every move the day it happens. This guide is published and maintained by the Nexa team; if a figure here is wrong, tell us and we'll fix it — getting it right matters more to us than the sale.
FAQ
Is Nexa really a Wave replacement?
For solo book sellers and small teams, yes. invoicing, scheduling, CRM, time tracking, task management, and full accounting — all for $279 once. Wave may be better if you have a large team (10+) or need enterprise-specific features.
What does Wave do that Nexa doesn't?
Wave has features like Free plan covering unlimited invoices and bookkeeping and Bank transaction import on Pro that some businesses rely on. For most solo book sellers, these aren't dealbreakers.
How fast does Nexa pay for itself?
At $19/month, Nexa pays for itself in 14.7 months. After that: $228 saved every year.
Can I pay in installments?
Yes. Nexa is $279 as a one-time payment, or 3 payments of $99 ($297 total). Either way it's a one-time purchase — no subscription, no recurring fees ever.