How long should you keep customer invoices?

Process: Reporting and payroll. Reviewed 2026-10-07.

Short answerThe IRS says to keep records that support income, deductions or credits until the period of limitations for that tax return expires, which is generally three years ^[1]. Some situations need longer, and state rules or contracts can add time, so many owners keep invoices for at least seven years.

The explanation

The IRS explains that the length of time depends on the event the record supports ^[1]. For ordinary income and expenses, the period of limitations is generally three years from filing, unless special situations apply ^[1]. Employment tax records should be kept for at least four years ^[2].

Customer invoices are income records, so they fall under that rule. They also support warranty questions, disputes and insurance claims, which can come later than a tax audit. That is why many owners keep them longer than the minimum.

Store them in a way you can retrieve. A dated digital copy of every invoice and receipt, backed up in a second place, beats a box of paper. Ask your accountant about your state and your trade, since requirements for regulated trades can differ.

Steps

Keep a copy of every invoice and receipt in a dated digital folder.
Back the folder up to a second location.
Note any longer state or contract rules in writing.
Review and delete old files only after checking with your accountant.

What to watch for

Records kept only on one phone.
Deleting files before a pending dispute ends.

How Apex does it

In progress

Part of this is built. The rest is not. Status as of 2026-10-07; the badge shows the least-built feature involved.

Apex is designed to keep invoices and customer receipts with the job and export reports to CSV. Report export is built for the first business, receipts are a demo screen, and an owner can still keep outside copies.

IN02Invoice templates and branding(In progress)
IN25Receipts to customer(Rolling out)
LD16Customer export (CSV) at any time(In progress)
RP14Export any report to CSV(Built)

Apex Flow Scheduler is in early access. See how we label status.

Sources

IRS: How long should I keep records? (read 2026-10-07)
IRS: Recordkeeping for small businesses (read 2026-10-07)

Where this question comes from: owners type it, or a close variant, into search boxes. It was returned by public search suggestions (Google, Bing or DuckDuckGo) when we collected them on 2026-10-06; the exact phrase seen was “how long to keep customer invoices?”. We do not have search volumes.

Terms and comparisons on this page

Invoice