Somewhere in a mortgage file, between the disclosures and the appraisal, there is a one-page IRS form that lets the lender go around you and ask the IRS directly what your tax returns said. That is Form 4506-C, the IVES Request for Transcript of Tax Return. Borrowers usually meet it as "sign here" and nothing more, which is a shame — it is the one document in the stack where a wrong year or a mistyped address quietly stalls the file for a week. This is not tax or lending advice; the IRS page for Form 4506-C is the authority. This is what the form is doing and where it goes wrong.
Form 4506-C authorises the IRS to send your tax transcripts to a lender through the Income Verification Express Service. Your lender fills in nearly all of it — including their own IVES participant details and the tax years requested — and you sign. Check the years and your name and address before signing, because a mismatch causes a rejection.
What does Form 4506-C actually do?
It is a permission slip with a delivery address on it. By signing, you authorise the IRS to release transcripts of your filed returns to a third party — your lender, or the service they use — through IVES, the Income Verification Express Service. Transcripts are not copies of your return; they are the IRS's own line-item record of what was filed and processed. That is precisely why lenders want them: a transcript cannot be edited in a spreadsheet the way a PDF of a return can, so it independently confirms the income you stated.
If you want a full copy of the return itself rather than a transcript, that is a different form and a different process — we cover it in filling Form 4506 for a copy of your tax return.
Is this the same as Form 4506-T?
They are close relatives that do the same job for different audiences. Form 4506-T is the general-purpose transcript request. Form 4506-C is the IVES version, built for participants in that program — which in practice means mortgage lenders and the verification vendors working for them. If you are in a loan file, you will be handed a 4506-C. If you are requesting your own transcripts for an accountant, a landlord, or an immigration packet, you are more likely in 4506-T territory.
One practical consequence: the IRS periodically revises these forms and rejects superseded versions. If a 4506-C has been sitting in a template folder for a couple of years, pull the current one from irs.gov rather than reusing the copy on file.
Who fills in which part?
Most of it is the lender's job, which is why the borrower's role is mostly verification.
- The lender completes their IVES participant name and number, the address transcripts are delivered to, the transcript type requested, the form number filed (1040, 1065, 1120 and so on), and the tax years or periods.
- You complete or confirm your name exactly as it appeared on the return, your spouse's name if the return was joint, your taxpayer identification number, your current address, and the address on the return if it was different.
- You sign and date. On a joint return, both spouses generally sign — an easy one to miss when the form arrives as a single signature line in an e-sign flow.
Do not sign a blank or half-filled 4506-C. A signed form with empty request fields is an open authorisation, and no reputable lender needs one.
Why do these come back rejected?
The IRS matches what is on the form against what is in its records, character by character, and mismatches bounce. The recurring causes:
- Name mismatch. The return was filed under a maiden name, a hyphenated name, or with a middle initial that is not on the form.
- Address mismatch. The "address shown on the last return" line is exactly that — the old address — and people fill in where they live now.
- Wrong years. The lender underwrote two years of income but the form requests one, so the file stalls at conditional approval.
- Stale revision. An outdated version of the form, no longer accepted.
- Missing second signature on a joint return.
None of these are interesting problems. They are all data-entry problems, and they cost days in a process where days matter.
Why does the copy I receive have no fillable boxes?
Because it usually is not the IRS's file any more. Lenders generate the 4506-C out of their loan origination system with the request fields already populated, and what comes out the other side is frequently a flattened or printed-to-PDF page: it looks like a form, but there is nothing to click. Borrowers then either print and hand-write it, or send it back blank because they could not type into it.
That is a general PDF problem, not a 4506-C problem — the same one behind a PDF that won't let you type. The fix is a tool that places text onto the page rather than into fields. Filly reads flat and scanned PDFs with OCR, places the values, and exports a normal PDF, so a flattened 4506-C can be completed and returned without a printer in the loop.
What if I process these all day?
For a loan officer, processor, or broker, the 4506-C is not one form — it is the same form for every borrower, with the same lender block and a different person on top. The parts that change are the borrower's name, address, TIN and years; the parts that do not change are yours.
That is the shape Filly is built for: keep the borrower as a reusable profile, keep your lender details as the constant, and generate each 4506-C from both with a review step before it goes out for signature. The same profile then fills the rest of the packet — the disclosure forms, the lease on an investment property, a bill of sale — instead of being retyped into each one. Filly's free plan covers 3 forms, 5 clients and 10 fills a month with no card, which is enough to run one file through end to end.
FAQ
How long does an IVES transcript request take?
Turnaround varies with IRS processing volumes and has been materially disrupted in past shutdown periods. Ask your lender what they are currently seeing rather than relying on a published figure — and submit a clean form, since a rejection restarts the clock entirely.
Can I refuse to sign a 4506-C?
You can, but it usually ends the application. Independent income verification is a standard condition of underwriting, and for most conventional loans the transcript check is not optional. If you are uncomfortable with the scope, ask the lender to narrow the years requested rather than declining outright.
What if I have not filed for one of the requested years yet?
The IRS will return no transcript for that year, and your lender will need an alternative — often a filed extension plus supporting documentation. Tell them before the form is submitted; discovering it through a rejection costs a week for no reason.
Can Form 4506-C be signed electronically?
The IRS accepts electronic signatures on IVES requests under its published requirements, and lenders routinely e-sign them. The requirements do change, so follow whatever process your lender's compliance team specifies rather than improvising a signature method.
Is a transcript the same as my tax return?
No. A transcript is the IRS's summary of the line items on your return as processed, including later adjustments. It is not a facsimile of the pages you signed, and it deliberately masks parts of personal identifiers.
Can I pull my own transcripts instead?
You can get them for yourself through the IRS, but that does not usually satisfy a lender — the point of IVES is that the document travels from the IRS to the lender without passing through your hands. Expect to sign the 4506-C regardless.