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/Retainer Invoice Generator

Generate a retainer invoice

Bill a fixed retainer fee for a period, plus any overage.

Built in your browser. Nothing is uploaded anywhere.
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Start over?

This clears this retainer invoice and everything you've entered.

RT-001 already exists

You already have a saved retainer invoice numbered RT-001, billed to another client. Continuing will overwrite that document.

Service Provider details

Service Provider name
Phone (optional)
Email (optional)
Service Provider logo (optional)
Address (optional)

Client details

Client name
Phone (optional)
Address (optional)

Retainer Invoice details

Retainer Invoice number
Date
Due date
Retainer period
Currency

Bank details (optional)

Account holder name
Account number
IFSC
Bank name
Line items
DescriptionQtyRateAmount
₹0.00
Notes / payment terms (optional)
Signature / stamp (optional)

Shown near the bottom of the document, above “Authorized Signature”.

Service Provider name
Retainer Invoice RT-001
2026-09-13
Client: Client name
DescriptionQty × RateTotal
-1 × ₹0.00₹0.00
Total₹0.00
Built in your browser. Nothing is uploaded anywhere.
01
Fill in the retainer period

Service provider, client, and which period this retainer covers.

02
Add the retainer fee, plus any overage

One line for the fixed fee, and additional lines for anything billed beyond it.

03
Print or save as PDF

Send it to your client for payment.

Frequently asked

How do I bill overage on top of a fixed retainer?

Add a second line item for the extra hours or work beyond what the retainer covers, alongside the fixed retainer-fee line.

Can I reuse this every month?

There's no saved-template feature. Just fill it in fresh each period, or keep a copy of your entries to paste back in next time.

Does it support GST on the retainer fee?

Yes. Enter a GST rate and totals compute automatically, same as any other line-item invoice.

Can I show unused hours carried over to next month?

There's no automatic carryover calculation. Note any carried-over balance manually as its own line item or in the notes field.

Can I add my logo and signature?

Yes. Both can be uploaded and appear on the generated PDF.

Is there a way to track multiple clients' retainers?

Each invoice is generated independently, there's no built-in client or retainer tracking dashboard, so keep your own record of who's on what retainer.

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