Wanderlust World Wanderlust World Since Puerto Rico is a USPS domestic destination, Certified Mail fees are identical to mailing within the 50 states.
| Weight | Fee |
|---|---|
| Up to 4 oz | $3.50 |
| 5–8 oz | $4.05 |
| 9–12 oz | $4.60 |
| 13 oz – 1 lb | $5.15 |
| Service | Fee |
|---|---|
| Restricted Delivery | $2.05 |
| Return Receipt (electronic) | $2.10 |
| Return Receipt (mail, PS Form 3811) | $3.20 |
| Return Receipt for Merchandise | $4.70 |
| Signature Confirmation | $2.95 |
| Insurance | Varies by value ($0.01–$5,000+) |
1 oz letter to San Juan, Certified + Electronic Return Receipt: $0.73 + $3.50 + $2.10 = $6.33.
Rates effective January 2024. Always verify at usps.com or local Post Office.