How to Prepare Cards for Grading 2026: Complete Pre-Submission Checklist

Step 1: Card Inspection Under Magnification

PSA graders examine cards under magnification. You should too. Flaws invisible to the naked eye are often the difference between PSA 10 and PSA 9.

Tools needed:

• Jeweler's loupe (10x): $8-15. Essential for corner wear, surface scratches, and print defects.
• LED desk lamp: $20-40. Bright, even lighting eliminates shadows that hide flaws.
• Phone macro lens: $15-30. For documentation photos and edge inspection.
• Centering tool or ruler: $5-10. For precise border measurement.

What to inspect — the four pillars:

• Corners: Look for whitening, fuzzing, or rounding under 10x magnification. Even slight corner wear drops a card from PSA 10 to 9. Check all four corners — one soft corner kills the gem.
• Edges: Check for chipping (especially on chrome cards), rough cuts, and edge whitening. Run your finger along the edge — any roughness indicates wear. Modern Prizm cards are notorious for edge chipping.
• Surface: Look for scratches, print lines, dimples, and clouding. Tilt the card under light at multiple angles — surface flaws are angle-dependent. A print line invisible at one angle may be obvious at another.
• Centering: Use a ruler or centering tool to measure border ratios. PSA requires 55/45 or better for PSA 10. See the centering section below for measurement instructions.

Step 2: Centering Check — The #1 Grade Killer

Centering is the #1 reason cards miss PSA 10. It is also the easiest thing to check at home before you spend money on a submission.

PSA centering requirements:

• PSA 10 (Gem Mint): 55/45 or better on front, 75/25 or better on back
• PSA 9 (Mint): 60/40 or better on front, 90/10 or better on back
• PSA 8 (NM-MT): 65/35 or better on front, 90/10 or better on back
• PSA 7 (Near Mint): 70/30 or better on front, 90/10 or better on back

How to measure centering:

1. Measure the left and right borders in millimeters using a ruler or caliper.
2. Add them together to get the total border width.
3. Divide each border by the total to get the ratio.
4. Example: Left border = 5mm, Right border = 6mm. Total = 11mm. Left = 5/11 = 45.5%, Right = 6/11 = 54.5%. Centering is 54.5/45.5 — within PSA 10 tolerance.
5. Repeat for top/bottom centering.

If your card is worse than 55/45 on either axis, it is not a PSA 10 candidate. Do not submit it — you will get a PSA 9 at best and waste your grading fee. Move on to the next card.

Step 3: Cleaning Cards Safely (Without Damaging Them)

Cleaning cards before submission is controversial — done wrong, it damages cards permanently. Done right, it removes only surface debris and can improve grades by 0.5-1 points.

Safe cleaning methods:

• Microfiber cloth: Gently wipe surface to remove dust and fingerprints. Use a fresh, clean cloth. One light pass in a single direction — do not scrub.
• Compressed air: Blow away loose dust particles. Hold can 6+ inches from card. Short bursts only — prolonged blasts can force debris into the card surface.
• Soft brush: For stubborn particles, use a clean, new makeup brush with the lightest possible touch.

NEVER use these — they will permanently damage your card:

• Water or moisture: PSA detects water damage under UV light. Can cause warping and ink bleeding.
• Chemicals (Windex, alcohol, etc.): Residue is visible under magnification and UV light. Can dissolve card finish.
• Erasers: Micro-abrasion damages card surface permanently. PSA considers this alteration.
• Tape or adhesives: Residue is impossible to remove completely. Card will be flagged.
• Card polishing or pressing: PSA considers this altering. Card will be rejected or given "Altered" designation.
• Trimming edges: This is fraud. Permanent ban from all grading companies.

Step 4: Proper Sleeving and Holders

The way you sleeve and holder your cards directly impacts the condition in which they arrive at the grading company. A card that leaves your hands as a potential PSA 10 can arrive as a PSA 9 if it suffers damage in transit.

Required supplies:

• Penny sleeves (new, clean): $2-4 per 100. Use new sleeves only — old sleeves transfer dust and oils.
• Card Saver 1 semi-rigid holders: $8-15 per 50. PSA specifically recommends Card Savers over top loaders. The thinner, flexible material lets grading staff extract cards safely.
• Team bags or resealable bags: $3-5 per 100. For sealing holders against dust and moisture.
• Painter's tape: $3-5. Low-adhesive tape for securing Card Savers during shipping. Never use scotch tape or packing tape.

Step-by-step sleeving:

1. Wash and dry hands thoroughly. No lotion. Alternatively, wear clean cotton or nitrile gloves.
2. Pick up the card by its edges only — never touch the front or back surfaces.
3. Insert the card into a penny sleeve top-first (top edge goes in first). This means the sleeve opening faces down when inserted into the Card Saver, preventing the card from sliding out.
4. Push the card all the way to the bottom of the penny sleeve so it sits snugly.
5. Insert the penny-sleeved card into a Card Saver 1. The card should slide in smoothly — do not force it.
6. Verify the card is face-up (front visible through the Card Saver window).
7. Do NOT tape the Card Saver shut. Grading companies need to extract the card, and tape complicates extraction.
8. Optional: Write a small number on painter's tape on the back of each Card Saver corresponding to the line number on your submission form.

Step 5: AI Pre-Grading — Screen Before You Spend

Before spending $80+ per card on grading fees, use AI pre-grading to confirm your card's PSA 10 probability. At $0.19/card, AI pre-grading analyzes your card photo and predicts the PSA grade with 89% accuracy.

What AI pre-grading checks:

• Centering: Measures border ratios on both axes and compares to PSA 10 (55/45) and PSA 9 (60/40) thresholds.
• Corners: Analyzes all four corners for sharpness, whitening, and fuzzing under magnification-level detail.
• Edges: Checks for chipping, rough cuts, and edge whitening — especially important for chrome cards.
• Surface: Detects scratches, print lines, dimples, and clouding that may not be visible to the naked eye.

Decision framework after AI pre-grading:

• 70%+ PSA 10 probability: Submit for grading — high probability of premium return.
• 50-70% PSA 10 probability: Calculate expected value. May be worth it if the card has high PSA 10 value.
• Below 50% PSA 10 probability: Do not submit. Sell raw or keep in collection. The grading fee will likely exceed the premium.
• Predicted PSA 8 or lower: Never submit. The grade adds little to no value over raw.

Step 6: Photograph Every Card Before Shipping

Before shipping your cards, photograph every card for insurance proof. If a card is damaged in transit or during grading, you need documentation of its pre-submission condition.

What to photograph:

• Front of card, clearly lit, full frame
• Back of card, clearly lit, full frame
• All four corners under magnification or close-up
• Edges under good lighting
• The card in its penny sleeve and Card Saver, ready for shipping

Store these photos in a dedicated folder named with the submission date and card descriptions. If you need to file an insurance claim, these photos are your proof of pre-submission condition.

Step 7: Packaging for Safe Shipping

Proper packaging prevents transit damage that can drop your card from PSA 10 to PSA 8 before it even reaches the grading company.

Packaging steps:

1. Group Card Savers in bundles of 5-10, secured with rubber bands around the outside (never touching cards).
2. Place each bundle in a team bag for moisture protection.
3. Wrap bundles in bubble wrap — at least two layers.
4. Place in a small cardboard box that fits the submission snugly. Fill empty space with crumpled paper or packing peanuts to prevent movement.
5. Place the small box inside a larger shipping box with additional bubble wrap or packing material.
6. Ship via USPS Priority Mail with insurance covering the full declared value of the cards.
7. Add signature confirmation for submissions valued over $500.

Budget: $15-30 for shipping materials per submission, plus $2-5 per $100 of declared value for insurance.

Common Pre-Submission Mistakes to Avoid

These are the mistakes that turn potential PSA 10s into PSA 9s — or worse:

• Not checking centering: The #1 mistake. A card with 60/40 centering will never grade PSA 10, no matter how perfect the corners and surface are. Measure before you submit.
• Using old sleeves: Dust and oils from old sleeves transfer to card surfaces. Always use fresh penny sleeves.
• Using top loaders instead of Card Savers: PSA specifically recommends Card Saver 1 semi-rigid holders. Top loaders can cause pressure marks during extraction.
• Taping Card Savers shut: Tape complicates card extraction and risks adhesive contamination. Never tape the opening.
• Touching card surfaces: Fingerprints contain oils that PSA can detect. Always handle cards by the edges only.
• Using chemicals or water: PSA detects residue under UV light. Use only microfiber cloth and compressed air.
• Shipping in bubble mailers: Bubble mailers do not provide enough rigidity. Cards can be crushed in postal sorting machines. Always use a small box.
• Not insuring the package: If your submission is lost or damaged in transit, insurance is your only recourse. Declare the full value.
• Not using AI pre-grading: Submitting blind is gambling $80+ per card. AI pre-grading at $0.19/card tells you whether to submit before you spend the money.

Frequently Asked Questions

Sources & Further Reading

• PSA Submission Guidelines
• How to Prepare Cards for Grading (CardGrade)
• PreGradeCards Pre-Submission Guide
• Card Centering Guide (CardGrade)

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