| First-Class Mail® Single Piece Letters (Metered) | In Effect (2019) | New Rate (2020) |
| Weight Not Over (oz.) | ||
| 1 | 50 cents | 50 cents (no change) |
| 2 | 65 cents | 65 cents (no change) |
| 3 | 80 cents | 80 cents (no change) |
| 3.5 | 95 cents | 95 cents (no change) |
| Large Envelopes (Flats) | ||
|---|---|---|
| Weight Not Over (oz.) | ||
| 1 | $1.00 | $1.00 (no change) |
| 2 | $1.15 | $1.20 |
| 3 | $1.30 | $1.40 |
| 4 | $1.45 | $1.60 |
| 5 | $1.60 | $1.80 |
| Priority Mail Express Flat Rate - Domestic | ||
| Flat Rate Envelope | $22.50 | $26.35 |
| Legal Flat Rate Envelope | $25.70 | $26.50 |
| Padded Flat Rate Envelope | $26.20 | $26.95 |
| Priority Mail | ||
| Flat Rate Envelope | $7.35 | $7.75 |
| Legal Flat Rate Envelope | $7.65 | $8.05 |
| Padded Flat Rate Envelope | $8.00 | $8.40 |
| Small Flat Rate Box | $7.90 | $8.30 |
| Medium Flat Rate Boxes | $14.35 | $15.05 |
| Large Flat Rate Boxes | $19.95 | $21.10 |
