In 2018, the United States Postal Service adjusted rates and rules, shaping costs for businesses and senders across the country. This 2018 postage rates chart explains the most relevant price changes for different mailing categories.
Use the summary table below for a quick overview of key price points and service feature differences across common mailing needs.
| Mail Class | Base Price (1 oz) | Price per Additional Oz | Key Features |
|---|---|---|---|
| First-Class Mail Letters | $0.50 | $0.15 | Retail: $0.55, Cubic: $0.50, Automation: $0.46 |
| First-Class Mail Flats | $0.90 | $0.15 | Includes letters folded with envelopes |
| First-Class Mail Parcels | $2.67 | $0.20 | Lightweight, zone-based pricing |
| Priority Mail | $7.90 | $1.10 | 1–3 days, includes Tracking and $50 insurance |
| Priority Mail Flat Rate | $8.45–$16.55 | — | Fixed-price boxes and envelopes |
| Retail Postage Rates | Higher than Cubic | — | Convenience pricing at邮局 and retail kiosks |
First-Class Mail Pricing in 2018
Letter and Postcard Basics
First-Class Mail remained the most affordable option for lightweight letters and postcards in 2018, with Automation and Cubic tiers offering the lowest per-ounce rates for high-volume senders.
Flats and Shape-Based Pricing
The flats category covered larger envelopes and small packets, often used for magazines and small catalogs, with pricing aligned to weight and shape rather than rigid size boxes.
Priority and Express Services
Priority Mail Service Tiers
Priority Mail continued to compete with private carriers by promising 1–3 day delivery, including Tracking and limited insurance, while flat-rate options simplified budgeting for businesses.
Zone Pricing for Parcels
First-Class Mail Parcels and similar offerings used zone-based structures, where distance heavily influenced the final price, rewarding regional shipping patterns.
Rates for Business and Bulk Senders
Automation and Volume Discounts
Eligible businesses met volume and design standards to earn Automation prices, significantly reducing per-piece costs compared to standard retail postage.
Postal Pricing Updates in 2018
The 2018 postage rates chart reflected measured price changes designed to align with operational costs while preserving volume-based incentives for large mailers.
Key Takeaways for 2018 Postage Planning
- Understand Automation and Cubic pricing to lower per-piece First-Class costs.
- Use Priority Mail Flat Rate for consistent budgeting across package sizes.
- Track zone impacts when sending parcels to optimize rate selection.
- Monitor USPS annual updates to anticipate shifts in the 2018 postage rates chart.
FAQ
Reader questions
How much did a regular stamp cost in 2018?
The single-piece First-Class Mail letter rate was $0.50, with a metered stamp typically priced at $0.46 for Automation-qualified mail.
What extra fees applied for heavier letters beyond one ounce in 2018?
Each additional ounce or fraction thereof cost $0.15 for First-Class Mail letters and flats under the standard weight break rules.
Did Priority Mail prices change noticeably in 2018?
Priority Mail base prices stayed steady at common tiers, with adjustments focused on specific zones and package configurations to manage cost predictability.
What were the main design goals behind the 2018 postage rates chart?
The update aimed to balance revenue stability, service investment, and incentives for high-volume, automated mail while clarifying pricing for flats and parcels.