Guides to business holiday cards

We write these for owners and office managers who send cards to clients each year. Every fact has its source listed at the end of the guide.

• How to sign business holiday cards

  Signature lines for owners, partners and teams, when a printed signature is fine, and the hours 100 cards take by hand.

• Holiday card list template for your clients

  A mailing list template for client holiday cards, and how to check the names and addresses before anything is printed.

• How much it costs to send business holiday cards

  Holiday card postage in 2026, the surcharge on square envelopes, and what 100 cards cost to mail yourself.

• When to send business holiday cards

  The 2026 USPS mail-by dates for delivery before December 25, and how to plan backward from them.

• Digital Christmas cards for clients

  When an e-card works for business clients, and the email law it must follow if it promotes anything.

• What to write in a business holiday card

  Sample messages for clients, referral partners and new clients, each under 300 characters.

• How to address business holiday cards

  The line order for a client at work, a whole office or a couple, and where Attn goes.

• Why holiday cards come back to the sender

  Short postage on square envelopes, clients who moved, and missing suite numbers, with what to fix.

• Client holiday gifts and the $25 tax limit

  The IRS limit on client gifts, the costs that don't count toward it, and the records to keep.

• Realtor holiday cards for past clients

  Who to send to, sample messages, and the firm-name rule in the REALTOR Code of Ethics.

• Holiday cards for accountants and tax preparers

  Timing around tax season, sample messages, and what Circular 230 says about client mailings.

• Holiday cards for financial advisors

  How FINRA Rule 2210 treats a client card mailing, and messages with no investment talk.

• New Year cards for clients

  When to mail a New Year card, and messages that fit any client.

• Holiday postcards for business clients

  Postcards compared with folded cards, postage by size, and what goes on each side.

• Happy Holidays or Merry Christmas on business holiday cards

  Which greeting to use, what the etiquette advice says, and how to choose for your list.

• Holiday cards for law firms

  Who to send to, sample messages, and what the ABA Model Rules say about cards to clients.

• Holiday cards for insurance agents

  Sample messages for policyholders and what CMS counts as marketing for Medicare agents.

• Thanksgiving cards for clients

  The 2026 mail-by dates and sample thank-you messages.

• Holiday cards for nonprofit donors

  Sample thank-you messages and why the IRS acknowledgment is a separate letter.