Late fee calculator

Work out the interest or late fee on an overdue invoice from its due date. Free, instant, nothing to sign up for.

Days late
0
Late fee
0.00
Total now due
1,000.00

Fee = amount × 1.5% × 12 ÷ 365 × 0 days charged (simple interest, by the day).

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Questions

How do I calculate interest on a late invoice?

For a monthly rate charged by the day: amount × monthly rate × 12 ÷ 365 × days late. On 1,000 at 1.5% a month, 30 days late is about 14.79.

Can I charge a late fee on an invoice?

Usually only if the customer agreed to it before the work, for example in your quotation or contract terms. Put the late fee on every quotation and invoice so it is clear from the start. Rules differ by country, so check what applies to you.

What is a normal late fee?

Many small businesses use 1% to 2% a month, or a one-time fee. Keep it reasonable: the aim is to be paid on time, not to lose the customer.

What are grace days?

Days after the due date before any fee starts. A few grace days avoid charging a customer whose transfer is simply on its way.

How do I avoid late payments in the first place?

Send the invoice the day the job is done, state the due date clearly, offer an easy way to pay and send a polite reminder before it is due. Tichkuly CRM shows which invoices are due and sends reminders by WhatsApp.

Get paid before a late fee is needed

Tichkuly CRM shows which invoices are due, sends polite reminders by WhatsApp and records part payments. Free to start.

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