If you mail contribution checks close to year-end deadlines – for IRAs, HSAs, charitable gifts, or other tax-timed transactions – please read this.
The IRS and U.S. Postal Service recently clarified how mail postmarks are assigned, and the change matters for how contributions get credited for tax purposes.
What’s different? A postmark now reflects when your envelope enters USPS automated processing – not the day you dropped it in a mailbox or printed a postage label. In some cases, that gap can be several days. Preprinted or kiosk postage labels don’t confirm when USPS actually received your envelope, so they can no longer serve as reliable proof of timing.
What this means for you: If a check is postmarked after a key deadline, it may not count for the intended tax year – even if you mailed it on time.
A few easy ways to protect yourself:
- Mail earlier. When deadlines are involved, don’t wait until the last few days.
- Use trackable mail. Certified Mail, Registered Mail, or a Certificate of Mailing all provide confirmation of when USPS accepted your envelope.
- Request a manual postmark. If you’re mailing close to a deadline, take the envelope directly to a post office counter and ask the clerk to hand-stamp it. That stamp reflects the actual date of acceptance.
- Go electronic when possible. Online contributions eliminate postmark uncertainty entirely.
As always, if you have a time-sensitive contribution coming up and aren’t sure of the safest approach, don’t hesitate to reach out – we’re happy to think it through with you.