Pay stub and tax form extraction software: 8 tools for teams that check income

Pay stub and tax form extraction software reads the pay stubs and tax forms that applicants send. The tax forms include W-2s, 1099s, tax returns and K-1s. It turns each one into data your team can check. The tools differ on two things. One is which tax forms they read. The other is whether they check the forms against each other.

We compared 8 tools for lenders, housing compliance teams and other teams that verify income. Docsumo is our product. Every other vendor fact comes from the vendor's own website, checked on October 30, 2026. We didn't test the tools on our own files.

What pay stub and tax form extraction software does

Applicants rarely send one document at a time. A mortgage or rental application often arrives as one PDF with two pay stubs, last year's W-2 and a full tax return. The software has to split that file into its forms before it can read any of them.

Every tool on this list reads documents. The tools differ on which forms they read and on what happens next.

Pay stubs are hard because each payroll provider lays them out its own way. Lenders also care about the date. Fannie Mae says the most recent pay stub must be dated no earlier than 30 days before the initial loan application date. It must also include all year-to-date earnings. So the software has to read the pay date and the year-to-date column, not just this period's pay.

Tax forms are the opposite problem. The IRS sets each layout, but there are many forms. A self-employed applicant's return can hold several schedules and a K-1 from each business they own a share of.

One couple's tax packet, form by form

The figure shows how Docsumo reads one married couple's 2025 tax packet. Pick a form to see its fields and the checks run on it.

Elena Ruiz draws a salary from Front Range Dental Group PC, an S corporation, and owns 25% of it. Her W-2 shows $136,500 in box 1. The IRS instructions say line 1a of Form 1040 is the total from box 1 of the W-2s. The couple's 1040 shows $136,500 on line 1a, so that check passes.

Her share of the company's profit takes three forms to trace. The company's Form 1120-S reports $412,000 of ordinary business income on line 22. Her K-1 gives her 25% of that, $103,000, in box 1. The IRS tells shareholders to report box 1 income on Schedule E, line 28. The couple's Schedule E shows $103,000 there too.

Her spouse, David, runs a design studio on his own. Two businesses paid him on Forms 1099-NEC, for $28,500 and $18,300. That's $46,800, but his Schedule C reports $41,300 of gross receipts on line 1. The IRS asks anyone whose 1099-NEC totals are higher than line 1 to attach a statement explaining the difference. So the check should ask the applicant for that statement, not mark the return as wrong.

Every tool below can read the boxes and lines on the forms it supports and send them back as data. Fewer tools run checks like these, which compare one form with another. Docsumo calls these checks cross-document validation, and they come with the Enterprise plan.

The 8 pay stub and tax form extraction tools

Docsumo is our product, so it comes first, with a plain line on what it doesn't do. The others follow by kind. Lending platforms come first, then developer tools, then the three cloud APIs.

• 99%99%field-level accuracy on 250+ document types
• 95%+95%+of documents AI Approved, so no one had to touch them
• <5 min<5 minper document, down from 2+ hours

We also looked at three tools that came up in our research. Veryfi has W-2 and W-9 APIs, but its site shows no pay stub product. Doxis AI.dp, the product on Klippa's site, reads W-2s, but its payslip page doesn't mention US pay stubs. Nanonets has 1099 and tax statement pages, but no pay stub page.

Two other groups do a different job. K1x and Additive read K-1s for tax preparers, who need the figures for a return rather than an income check. Argyle, Truv and Plaid mainly get income data from a link to the applicant's payroll or bank account. Each also accepts uploaded documents.

Pay stub and tax form extraction software compared

The table follows each vendor's own site, checked October 30, 2026. "Not described" means we couldn't find it on the vendor's pages.

Checks to ask every vendor to show

Every tool reads the boxes. Whether your team still has to open the file depends on which checks the tool runs. Ask each vendor which of these it runs and which ones your engineers would have to build.

• The pay stub is recent enoughFannie Mae wants the most recent stub dated no earlier than 30 days before the application. Your own program may set a different limit.
• The pay stub adds upGross pay minus deductions equals net pay, and this period's pay rolls into the year-to-date total.
• Pay to date fits last year's W-2Compare year-to-date pay with last year's W-2 pay for the same number of months. If it's much lower, ask the applicant why.
• W-2 wages match the returnBox 1 of each W-2 adds up to line 1a of Form 1040.
• K-1 income reaches Schedule EBox 1 of each K-1 matches line 28 of Schedule E. It should also match the owner's share of the income on the business return.
• 1099s match Schedule CIf the 1099-NEC totals are higher than line 1, the return should carry a statement that explains why.
• Names and tax ID numbers agreeThe employer's name and EIN are the same on the pay stub and the W-2, and the applicant's name matches on every form.

Our take. We'd start with the pay stub, because nearly every wage earner's file has one and it changes every pay period. Once the software reads and checks stubs without a person fixing them, add W-2s. Then add the full returns and K-1s that self-employed applicants send. Their forms vary the most.

If you check income for affordable housing

Housing compliance teams read the same forms for a different decision. They use them to work out a household's annual income for a tenant income certification. Our tenant income certification guide walks through the form itself.

Docsumo sorts a tenant file into its documents and reads each one. These include pay stubs, W-2s, tax returns, benefit letters and bank statements. On the Enterprise plan, it checks the documents against the application and each other, by rules you set. A calculation step can annualize income and compare the total with the limit you set. Your specialist reviews and signs the certification. If an adult's W-2 is missing, the Document Collection and Email agents can email the applicant for it. Every override is kept in the audit log.

Match the tool to the forms your applicants send

If most of your applicants are wage earners, most tools here can read their pay stubs and W-2s. In that case, choose by price and by who builds the checks, your team or the vendor. If self-employed applicants send full returns with schedules and K-1s, the list gets shorter. Docsumo, Sensible and LlamaParse read K-1s. If you want the forms checked against each other without building the checks yourself, Docsumo does that on its Enterprise plan. Ocrolus and Informed.IQ calculate income for you. For a whole loan file reviewed by AI agents, see our list of AI loan file review software.

Book a demo and bring a recent pay stub and a full tax return, with the personal details masked. You can also start a free trial and run your own checks.

Frequently asked questions