PSA Grading Standards: What PSA Actually Looks For in 2026

How PSA Grades Your Cards

PSA evaluates every card on four criteria: centering, corners, edges, and surface. Each one gets assessed independently, and your final grade is essentially limited by the weakest of the four. A card with perfect corners, edges, and surface but 70/30 centering will not get a 10 — full stop.

Understanding what PSA looks for in each category is the difference between submitting confidently and gambling your grading fees. Here is exactly what their graders evaluate, grade by grade, based on PSA's published standards and what experienced submitters have observed across thousands of cards.

Centering

Centering measures how well the printed image sits within the card's borders. PSA expresses this as a ratio — the difference in border thickness between opposite sides. A perfectly centered card is 50/50 on all axes.

Centering Requirements by Grade

Grade	Front Centering	Back Centering
PSA 10 (Gem Mint)	55/45 or better	75/25 or better
PSA 9 (Mint)	60/40 or better	90/10 or better
PSA 8 (NM-MT)	65/35 or better	90/10 or better
PSA 7 (NM)	70/30 or better	90/10 or better
PSA 6 (EX-MT)	75/25 or better	90/10 or better

PSA tightened their centering requirements in early 2025. The previous Gem Mint 10 threshold was 60/40 on the front — it is now 55/45. This single change knocked a meaningful percentage of submissions from 10 to 9.

What This Means in Practice

A card that measures 56/44 on the front barely makes the 10 cut. A card at 58/42 is comfortable. Anything past 60/40 on the front is a hard cap at PSA 9 regardless of how clean the rest of the card looks.

Back centering is more forgiving, but not irrelevant. A card with 80/20 back centering paired with 55/45 front centering will still get a 10. But a back at 76/24 or worse starts pulling the grade down even though front centering is fine.

Borderless and full-art cards present a unique challenge. With no visible border to measure, PSA evaluates centering based on the image position relative to the card edges. These cards are generally easier to center well, but the evaluation is more subjective.

For a full walkthrough on measuring centering yourself, see our centering guide.

Corners

Corner condition is where most submissions fail. Corners degrade more easily than any other part of a card — shuffling, stacking, pulling from packs, even sliding in and out of penny sleeves wears corners over time.

What PSA Looks For

PSA examines all four corners under magnification (typically 5x-10x) and evaluates:

• Sharpness: Are the corners crisp points, or do they show any rounding?
• Fraying: Are there micro-fibers of cardboard separating at the corner tip?
• Dings: Any impact marks from the card being knocked against a surface?
• Whitening: Does the corner tip show white cardboard where the printed layer has worn away?

Corner Standards by Grade

PSA 10: All four corners must appear sharp and intact under magnification. No rounding, no fraying, no whitening whatsoever. Even microscopic corner softening visible only at 10x can drop the grade.

PSA 9: One corner may show very slight imperfection — the faintest hint of softness barely visible under magnification. The other three corners should still look sharp.

PSA 8: Minor corner wear is acceptable. Slight rounding or a single corner with visible (but minor) wear.

PSA 7: One or two corners can show noticeable wear. Slight whitening is acceptable.

PSA 6 and below: Progressive corner wear, with visible rounding, whitening, or damage on multiple corners.

The Manufacturing Problem

Here's what frustrates collectors: some cards come out of the pack with imperfect corners. Factory cutting equipment does not always produce razor-sharp points. Japanese Pokemon cards are generally well-cut, but American sports cards — particularly Topps products — frequently have minor corner issues straight from the pack.

There is nothing you can do about factory-imperfect corners. PSA does not care whether the damage happened at the factory or in your binder. They grade the card as it exists. This is why pre-screening cards before submission saves so much money.

Edges

Edge evaluation covers the four borders of the card between the corners. This area gets less attention from casual inspectors, but PSA's graders look at it closely.

What PSA Looks For

• Chipping: Small pieces of the printed surface layer missing along the edge, exposing the white cardboard underneath
• Whitening: A continuous line of white along one or more edges where the print layer has worn
• Nicks: Small indentations or cuts along the edge
• Roughness: Uneven edge from poor cutting or wear
• Diamond cutting: When the card is cut at a slight angle, creating a parallelogram instead of a rectangle. Minor diamond cut is not uncommon from factory, but severe cases affect the grade.

Edge Standards by Grade

PSA 10: All four edges must be clean with no chipping, whitening, or nicks visible under magnification. The edges should appear smooth and evenly cut.

PSA 9: Very minor edge wear is permissible — perhaps the faintest hint of whitening along one edge, detectable mainly under magnification.

PSA 8: Light edge wear. Minor chipping or whitening visible without magnification on one or two edges.

PSA 7: Moderate edge wear across multiple edges. Noticeable whitening.

Edge Issues by Card Type

Different card stocks show edge wear differently. Chrome and refractor cards tend to show edge wear as silvering — the reflective layer separating from the base cardboard and creating visible silver lines along the edges. Standard cardboard shows traditional whitening. Foil cards may show peeling at the edges where the foil layer separates.

Pokemon cards with holofoil patterns are particularly susceptible to edge silvering. Check our guide on Pokemon silvering for a deeper look at this specific issue.

Surface

Surface evaluation is the most complex and subjective of the four criteria. It encompasses everything visible on the front and back faces of the card between the edges.

What PSA Looks For

Print defects:

• Print lines (thin lines visible across the card from printing rollers)
• Print dots or spots (ink inconsistencies)
• Color variations or fading
• Roller marks from manufacturing

Handling damage:

• Scratches (visible under light at various angles)
• Scuffing or loss of gloss
• Fingerprint marks or oils
• Indentations from stacking pressure

Structural issues:

• Creasing (any crease, no matter how minor, severely impacts the grade)
• Bending or warping
• Surface bubbling or delamination

Surface Standards by Grade

PSA 10: The surface must be flawless to the eye and under magnification. No scratches, no print lines, no scuffs, full original gloss. Minor factory print characteristics (like consistent texture) are acceptable — PSA distinguishes between manufacturing texture and damage.

PSA 9: A single minor surface imperfection is permissible. This could be a very faint print line, a tiny surface mark visible only when catching light at a specific angle, or a barely detectable surface variation.

PSA 8: Light surface wear. Minor scratches visible upon close inspection, or a few small print imperfections.

PSA 7: Moderate surface wear. Scratches or scuffs visible at normal viewing distance. Minor creasing may be present.

PSA 6 and below: Increasingly visible surface issues including notable scratches, creasing, surface loss, or significant print defects.

The Print Line Debate

Print lines are the most argued-about surface defect in card grading. They occur during manufacturing — roller contact during the printing process creates thin lines visible under certain lighting. Some collectors feel these should not count against a grade since the collector did not cause them. PSA disagrees. A print line visible under normal inspection will prevent a 10 and may prevent a 9 depending on severity.

For help distinguishing print lines from scratches, see our print lines guide.

How the Four Criteria Combine

PSA does not publish an explicit formula for how subgrades produce a final number, because PSA does not issue subgrades on their standard service. The overall grade reflects a holistic assessment across all four criteria.

In practice, the final grade is effectively capped by the weakest category. A card that is 10-worthy on corners, edges, and surface but measures 62/38 centering will get a 9. A card with centering, edges, and surface befitting a 10 but one slightly soft corner will get a 9.

There is some limited flexibility at grade boundaries. A card that is borderline 9/10 on centering but exceptionally strong on all other criteria has a slightly better shot at the 10 than one that is borderline across multiple categories. But this is a marginal effect — the hard thresholds dominate.

PSA 10 vs. PSA 9: Where the Line Falls

The gap between 9 and 10 is where the money is. A PSA 10 can sell for 2-10x what the same card grades at PSA 9. That makes the specific criteria at this boundary worth studying closely.

A card gets a 10 when it clears all four thresholds:

• Centering at 55/45 front and 75/25 back or better
• All four corners sharp under magnification
• All four edges clean with no chipping or whitening under magnification
• Surface free of scratches, print lines, and handling marks

A card gets a 9 when it fails to clear one threshold by a small margin, or shows one very minor imperfection across any category. Common reasons a card lands at 9 instead of 10:

• Centering between 56/44 and 60/40 on the front
• One corner with the slightest softness
• A single faint print line
• Minor factory edge roughness on one side

For a detailed comparison of the value difference, see our PSA 9 vs PSA 10 guide.

How the Grading Process Works

Understanding the physical process helps set expectations:

1. Receiving and logging: Your submission is checked against your order form, and each card is assigned a certification number.

2. Initial assessment: A grader performs a first pass, evaluating all four criteria. This takes seconds per card for experienced graders processing modern cards, longer for vintage or unusual items.

3. Grade assignment: The grader assigns a grade. For standard submissions, this is a single-grader assessment.

4. Quality control: A subset of cards, particularly those at grade boundaries or high declared values, gets reviewed by a second grader. If the two graders disagree, a senior grader resolves the discrepancy.

5. Encapsulation: The card is slabbed with its grade label.

PSA processes around 90,000 cards per day across their facility. The sheer volume means your card gets limited individual attention — typically under a minute of active examination at standard service levels. Higher service tiers (Express, Super Express) do receive more careful review.

What PSA Does Not Penalize

A few things collectors worry about that PSA generally does not penalize:

• Factory wax staining on vintage cards. Expected for the era. Graded relative to what is normal.
• Minor factory print texture variations. Consistent texture across the card surface is not damage.
• Card thickness variations between sets. Different sets use different cardstock. PSA grades condition, not paper quality.
• Normal pack freshness signs. A card that looks "pack fresh" but has the typical glossy surface of a never-handled card receives no penalty for simply existing.

Pre-Screening Against PSA Standards

The most practical use of understanding PSA's standards is evaluating your own cards before committing grading fees. For every card you are considering submitting:

1. Measure centering using a centering tool or app. If the front is worse than 55/45, you are looking at a 9 ceiling at best. At 60/40 or worse, you are capped at 9.
2. Examine corners under a loupe or magnification. Any visible softness, whitening, or fraying eliminates the 10.
3. Run your finger along the edges and inspect visually. Chipping or whitening you can see without magnification is an 8-or-below issue.
4. Angle the card under bright light to check the surface for scratches, print lines, or scuffs. Tilt and rotate — some defects only appear at specific angles.

AI pre-grading tools like ZeroPop automate this evaluation using your phone's camera, analyzing all four criteria and giving you a grade estimate before you spend a dollar on submission. Running cards through a pre-screen takes seconds and pays for itself the first time it catches a card that would have graded poorly.

Frequently Asked Questions

Does PSA grade the front and back separately?

PSA evaluates both sides as part of the overall grade. Back condition matters — particularly back centering, which has explicit thresholds. A flawless front with a damaged back will receive a lower grade. Most experienced submitters check the back as carefully as the front before sending cards in.

Has PSA changed their grading standards recently?

Yes. In early 2025, PSA tightened centering requirements across the board. A Gem Mint 10 now requires 55/45 front centering (previously 60/40). This change cascaded through all grade levels, effectively making every centering threshold stricter.

Do PSA grades include subgrades?

PSA's standard grading service provides only an overall grade — no subgrades for centering, corners, edges, and surface individually. If you want subgrades, BGS and CGC include them with every graded card. See our BGS subgrades guide for more detail.

Can I request a regrade if I disagree with PSA's assessment?

PSA offers a review service where you can submit a graded card for re-evaluation. The grade can go up, stay the same, or go down — there is no guarantee of improvement. A review costs an additional fee and typically makes sense only when you believe a card was significantly undergraded and the value difference justifies the cost and risk.

Are PSA grading standards different for vintage versus modern cards?

PSA applies the same grading scale to all cards, but graders factor in era-appropriate expectations for vintage. A 1952 Topps card will not be held to modern centering or edge standards because the manufacturing technology of that era could not produce modern-level consistency. However, the four categories are still evaluated — just calibrated for what was achievable in that period.

What is the most common reason cards fail to get a PSA 10?

Centering. With the 2025 standard change to 55/45, centering is the single most common barrier to a Gem Mint 10 grade. Corners are the second most common failure point. Surface and edge issues cause fewer rejections at the 10 threshold because collectors tend to notice and avoid cards with visible surface or edge problems before submission.